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GENESIS-VPD™ USER’S MANUAL

24

Rev. 09/04

5. Performance Tips

Understanding potential radar interference and what to do
when it occurs can greatly increase the radar’s performance.

5.1 How Radar Works

Determining a vehicle’s speed, begins with the radar
gun transmitting and directing a beam of microwave
energy (radio waves) at an approaching (or departing)
target vehicle. When energy from this beam strikes a
vehicle, a small amount of the beam is reflected back to
the antenna. The reflected signal frequency shifts by
an amount proportional to the speed of the target
vehicle. This is known as the Doppler effect. The radar
device then determines the target vehicle speed from
the difference in frequency between the reflected and
transmitted signal.

5.2 Interference Sources and Remedies

When properly deployed and operated, Doppler radar
technology is extremely accurate and reliable.
However, variations in the environment can cause
situations and circumstances, which can cause
spurious (erratic and unusually low or high) speeds to
display. Signs that a speed is spurious can include the
following characteristics:

•

A reading appears when no target vehicle is in
the operational range of the antenna.

•

A target vehicle entering the operational
range overrides the interference signal,
causing the display speed to change
suddenly to the vehicle’s speed. This
comment applies to paragraphs 5.2.2
through 5.2.8.

•

The Doppler tone is corrupted with noise.

•

Speeds are irregular and do not provide a
valid traffic history.

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Содержание Genesis VP Directional

Страница 1: ...SIS VP DIRECTIONAL USER S MANUAL Certified ISO 9001 Decatur Electronics Inc 715 Bright Street Decatur IL 62522 USA Canada 800 428 4315 Intl 217 428 4315 Fax 217 428 5302 www decaturradar com Rev 09 04 Copyright 2000 2004 Decatur Electronics Inc ...

Страница 2: ...GENESIS VPD USER S MANUAL 2 Rev 09 04 ...

Страница 3: ... ask your Decatur sales representative about other Decatur products including the Genesis line of dash mount moving radar products the Genesis I and Genesis II Select Genesis II Directional and handheld stationary radar products including the Genesis Handheld Directional and the Genesis VP and the Galaxy Radar Message Trailer product line Also Decatur Electronics has a Hi8 in car video recording s...

Страница 4: ...ts 9 2 1 Batteries 9 2 1 1 Removing Batteries 10 2 1 2 Battery Charger 10 2 2 Controls 11 2 2 1 Faceplate 11 2 3 Display 12 2 3 1 Number Segments 12 2 3 2 Status Indicator Icons 12 2 4 Trigger 14 2 5 Mounting Configurations 14 3 Operating Modes 15 3 1 Primary Menu 15 3 2 Secondary Menu 17 3 3 Directional 19 3 4 Strongest Signal Mode 20 3 5 Faster Mode 20 3 5 1 Faster Toggle Mode 21 3 5 2 Faster Ho...

Страница 5: ...6 Testing the Device 29 6 1 Operator RequestedSelfTest 29 6 2 Mini Test 29 6 3 Master Reset 29 6 4 Tracking History 29 7 Care Cleaning and Storage 31 8 Specifications 32 8 1 Antenna Parameters 32 8 2 Voltages 32 8 3 Speed Range Parameters 32 8 4 Power Consumption Parameters 33 9 Legal Requirements 34 9 1 FCC Document 34 9 2 Radar Case Law 35 10 Frequently Asked Questions FAQ 36 11 Service 38 11 1 ...

Страница 6: ...ature greatly enhances your tracking history requirements About This Manual Note the following symbols in this manual indicates a warning message about safety precautions Please read it carefully indicates a helpful tip or precaution to note 1 Quick Start If you are already familiar with operating and using police radar guns you probably will want to follow the quick start instructions 1 1 Initial...

Страница 7: ...d how to change the default settings 1 2 Trigger Operation The Genesis VPD transmits and receives microwave energy when you pull the trigger When you want to lock onto a speed release trigger then pull it again within 1 2 second 1 The speed in the left window will move to the right window and flash alternately between it and a directional indicator t means the target vehicle is moving toward you a...

Страница 8: ...enesis VPD operates in Strongest Signal mode which is the default If you have purchased Faster Target software you can select the Faster mode of operation with the FAST button In Faster mode the Genesis VPD can operate in Faster Toggle or Faster Hold setting which you select in the secondary menu ...

Страница 9: ...o metal objects keys coins etc can not come in contact with the exposed metal end Remember to remove the caps before placing the batteries in the charger or the Genesis VPD If the device is idle for 30 minutes it automatically powers down to save the batteries The batteries have aminimum life of 300 charge cycles You can purchase additional batteries at hardware stores and from Decatur Electronics...

Страница 10: ... have problems or questions about your batteries contact Decatur Electronics at 800 428 4315 Black Decker at 800 54 HOWTO or a local Black Decker service center see the Tools Electric section in the Yellow Pages 2 1 1 Removing Batteries To remove the batteries press the red button with your thumb while pulling on the battery with your fingers 2 1 2 Battery Charger Only charge the batteries with th...

Страница 11: ...The MENU button lets you view the options that you can change SEL The select SEL button lets you choose the settings in each of the menu options To change a menu option press the SEL button TEST When you press the TEST button the Genesis VPD runs a self test For more on tests see section 6 Testing the Device FAST When you press the FAST button the Genesis VPD enters Faster target mode ...

Страница 12: ...e top or bottom of the display screen and describe the following conditions Figure 2 3 2 Number segments and status indicators POWER When POWER appears the power is on RFI The radio frequency interference RFI icon indicates that excess RFI energy is present The radar automatically inhibits all speed measurements No new speeds display or transmit via the serial port while this icon is active and if...

Страница 13: ... FAST FAST shows that the Genesis VPD is in Faster mode When the device is not in Faster mode it is in Strongest Signal mode the default mode XMIT XMIT means the Genesis VPD is transmitting HOLD HOLD indicates the system is not transmitting ERROR ERROR shows that the Genesis VPD has detected an internal hardware error which can affect the operation of the radar device Turn the gun off and back on ...

Страница 14: ...nal indicator t or A t means the target vehicle is moving toward you and A means it is moving away from you The locked speed clears when you pull the trigger again 2 5 Mounting Configurations The Genesis VPD is designed for hand held operation Optionally you can mount it to a standard camera tripod To order tripods see section 12 How to Order Additional Products 2You can request Trigger Release Lo...

Страница 15: ...store the factory default settings The Genesis VPD will exit menu mode if you do not press the MENU or SEL buttons after two seconds If you press and hold either the MENU or SEL buttons the Genesis VPD will remain in menu mode 3 1 Primary Menu You can use the factory default settings listed on the next page or set your own To select a setting repeatedly press the MENU button until the setting you ...

Страница 16: ...fault Options dir Direction tA t toward A away t A both Default Options bL Backlight On On Off Default Options Aud Audio volume 3 0 6 Default Options SEn Sensitivity 5 0 5 Default Options SLh Squelch On On Off Figure 3 1 Primary menu settings ...

Страница 17: ...setting on 0 as the audio doppler is part of the officer s tracking history requirement Sensitivity Level SEn The SEn option lets you control the maximum target acquisition range SEn levels range from 0 through 5 0 is off 1 is the minimum range and 5 is the maximum range You will normally want to start with the maximum range and decrease it until you attain the desired performance level Squelch SL...

Страница 18: ...t If neither MENU or SEL is pressed after 2 seconds the radar gun will return to normal operating mode Default Options Prt Communication 0 None 0 Not used port 1 sign video 2 Galaxy sign video 3 ASCII hundreds tens ones tenths CR 4 Lock Port 1200 Baud hundreds tens ones 5 Lock Port 9600 Baud hundreds tens ones 6 contact Decatur 7 contact Decatur Default Options FSt Faster target 1 Fast toggle 0 Fa...

Страница 19: ...The default 1 is Faster Toggle and 0 is Faster Hold Mini Test tSt The tSt option sets the system to automatically perform a mini self test every 10 minutes Some states require this test Direction dir The dir default is On If for some reason you want to turn it off you can toggle the setting to Off 3 3 Directional The Genesis VPD lets you easily select and focus on vehicles approaching or receding ...

Страница 20: ...strongest signal an essential function of tracking history The Genesis VPD defaults to the strongest signal tracking mode and will stay in this mode until you press the FAST button In Strongest Signal tracking mode the Genesis VPD displays the speed of the vehicle with the strongest return signal which is often the closest car This speed appears in the left window 3 5 Faster Mode The advanced sign...

Страница 21: ...itch to Faster target mode press and release the FAST button The speed of the vehicle returning the strongest signal will continue to appear in the left window and the speed of the next strongest target going faster than the strongest will appear in the right window The system will remain in Faster mode until you press the FAST button again the button toggles between Strongest Signal mode and Fast...

Страница 22: ...hold the select SEL button Then press and release the MENU button until you see FSt Then press and release the SEL button until you see 0 release the button and this setting will be in effect If you lock the speed of the next strongest target going faster than the strongest the LOCK and FAST icons illuminate to designate that the locked speed is a faster target lock If these icons do not appear th...

Страница 23: ...de The Genesis VPD has an RS232 communications port on the side panel Using a custom RS232 communications cable part number S769 100 you can connect the Genesis VPD and transmit data to display signs in car video and PCs for recording and analyzing speed data ...

Страница 24: ...t vehicle speed from the difference in frequency between the reflected and transmitted signal 5 2 Interference Sources and Remedies When properly deployed and operated Doppler radar technology is extremely accurate and reliable However variations in the environment can cause situations and circumstances which can cause spurious erratic and unusually low or high speeds to display Signs that a speed...

Страница 25: ...sine Effect The cosine effect causes the system to display a speed which is lower than the actual vehicle speed This condition exists when the target vehicle s path is not parallel to the antenna including conditions such as the vehicle traveling on a curve or a hill As the angle between the beam of the antenna and the target vehicle increases the displayed speed decreases Ideally an angle of zero...

Страница 26: ...fect will always result in a target speed being displayed that is less than the actual speed of the moving motor vehicle which will always be advantageous to the motorist 5 2 2 Fan Interference Fan interference is the most common form of interference that you are likely to experience It is caused when the radar measures the speed of the vehicle blower fan Changing the fan speed causes a proportion...

Страница 27: ...oses track of a target vehicle because the target is reflecting two or more signals which are interfering with each other The Genesis VPD is immune from multi path cancellation 5 2 6 Radio Frequency Interference RFI The system can inadvertently process radio energy as Doppler speeds including that from police radios airport radar microwave transmission towers CB radio transmitters and AM FM transm...

Страница 28: ... misuse of the system 5 2 8 Vehicle Ignition Interference The Genesis VPD has been designed to operate from the vehicle s cigarette lighter receptacle However some vehicles exhibit excessive alternator noise at the lighter receptacle In these rare cases the radar can exhibit erratic readings especially when the vehicle s electrical system is operated under heavy load Wiring an accessory outlet dir...

Страница 29: ...will appear in the display window Speed Simulation Test The Genesis VPD verifies speed accuracy using synthesized Doppler frequencies corresponding to a series of four simulated speeds 25 50 75 and 100 when in Km H mode 6 2 Mini Test The tSt option sets the system to automatically perform a mini self test every 10 minutes which is required in some states 6 3 Master Reset To reset all parameters to...

Страница 30: ...e actual speed This is an acquired skill that is taught on the basic operators course 2 Having made the visual observation and estimate of the rate of speed the radar unit will be placed in the operational mode 3 Note that the target speed displayed on the radar unit is consistent and confirms the officers initial observations and estimate and that the audio tracking tone emitted by the radar unit...

Страница 31: ...s and substances on the radar device When you are not using or transporting the device store it in its original packaging To clean the radar device dust it with a soft clean cloth which is free of cleaning solutions The Genesis VPD can withstand temperature variations however only the antenna is weather resistant ...

Страница 32: ...2 F to 158 F 30 C to 70 C Maximum humidity 90 relative humidity non condensing at 98 6 F 37 C Water resistance meets International Robustness Standard IEC 529 1989 and European Community Standard EN 60529 Classification IP55 These set international standards for immunity from damage by solid protrusions and water 8 2 Voltages Supply voltage 6 2VDC 8 0VDC Power supplied from replaceable Ni Cad batt...

Страница 33: ...o targets displayed Antenna ON 440 amperes 55 target displayed Antenna OFF 180 amperes segment check 888 888 Antenna ON segment check 888 888 370 amperes All currents measured at 7 2VDC with backlight off Standby antenna off 155 amperes Antenna ON 345 amperes no targets displayed Antenna ON 415 amperes 55 target displayed Antenna OFF 155 amperes segment check 888 888 Antenna ON segment check 888 8...

Страница 34: ...ttention Randall Sanner NOT TRANSFERABLE EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE and is VALID ONLY for the equipment identified hereon for use under the Commission s Rules and Regulations listed below FCC IDENTIFIER HTRCR 1KD Name of Grantee Decatur Electronics Inc Equipment Class Part 15 Field Disturbance Sensor Notes Traffic Safety Radar Frequency Output Frequency Emission ...

Страница 35: ...GENESIS VPD USER S MANUAL 35 Rev 09 04 9 2 Radar Case Law See Appendix C for more information on the Offense of Speeding and Training Qualifications ...

Страница 36: ... will last approximately as long as an aver age shift For specifics see section 2 1 Batteries Q Will my Genesis VPD work while my vehicle is moving A No the radar gun is a stationary only model so your vehicle should be parked and you need to hold it steady while operating it Q What if I drop my gun A The Genesis VPD is extremely durable with a Black Decker designed handle Simply reload the batter...

Страница 37: ...aseball softball racing watercraft or snowmobiles A Decatur Electronics has developed a radar gun specifically for use in baseball and softball We market this radar gun exclusively through the JUGS Company Contact 800 547 6843 www thejugscompany com Decatur s Prospeed model CR 1K sports radar works well with almost any kind of racing including watercraft snowmobile motorcycles and cars Contact Dec...

Страница 38: ... and chargers call 800 762 6672 The full warranty on parts and workmanship does not include normal wear and tear crushing dropping fire impact immersion or damage from attempted repair or modifications by unauthorized service agents For repairs simply return the unit transportation prepaid directly to the factory or to a Decatur authorized warranty service center Refer to section 11 2 Service Retu...

Страница 39: ...em and or the incident that resulted in the problem Failure to do so can delay the return of your radar device The Repair Services Department will issue you a return authorization RA number Write the RA number on your note and shipping label Return the system to Decatur Electronics Inc 715 Bright Street Decatur IL 62522 USA RA XXXXXX The customer is responsible for the shipping charges to send the...

Страница 40: ...ike to know the cost of repair prior to the actual repair work being performed Decatur would be happy to give you a repair estimate To obtain an estimate request it either on the paperwork you submit with the radar when you send it in for service or when you obtain a Return Authorization RA number Decatur provides estimates only upon request The initial charge for an estimate is currently 50 00 pe...

Страница 41: ..._________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________...

Страница 42: ...ak batteries and chargers Two nickel cadmium NiCd silver label 3 6 volt batteries and AC 2 port charger P702 VP135 29 95 Nickel metal hydride NiMH gold label battery P702 VP110 BULK 22 25 Nickel cadmium NiCd silver label battery P702 VP100 BULK 14 95 Custom RS232 communications cable S769 100 70 00 Molded holster S780 400 0 79 99 Pole mount bracket S758 75 0 29 95 Tripod P761 1 70 00 Tripod adapte...

Страница 43: ...GENESIS VPD USER S MANUAL 43 Rev 09 04 ...

Страница 44: ...gham O H C J 1979 Accused misread speed limit sign and believed he was in a higher speed limit zone HELD Accused s mistake was a mistake of law which is no defence to the charge of speeding R v Naugler N S S C 1981 Speeding is an offence of absolute liability to which mistake of fact is no defence R v Bigioni O C A 1988 ISSUE What evidence is required to satisfy burden on crown prima facie in pros...

Страница 45: ...ondition and was properly used HELD On summarized evidence it was implicit that radar when properly used is capable of registering speed of motor vehicle and at time was being properly used and in good working order As defence merely claimed but did not show machine subject to weaknesses conviction proper on weight of evidence R v Werenka Alta Q B 1981 ISSUE What evidence Crown must establish to p...

Страница 46: ...described the speed in terms of kilometres per hour nor did he describe the purpose or functioning of the radar gun HELD Judicial notice could be taken of the functioning of the radar gun While the description of the speed was imprecise the intended meaning was clear R v Longmire 1993 Nova Scotia Supreme Court Appeal Div The appellant s conviction was affirmed on appeal The appellant appealed furt...

Страница 47: ... of the Charter The appeal was dismissed R v Windrem May 27 1986 Brampton Prov Off Appt Ct Defence agents counsel use this case to support their argument that there must be evidence before the Court that the tests conducted on the radar device were in accordance with the accepted manufacturer s technique It is apparent from the Judgment that the appeal was allowed as the Justice of the Peace at tr...

Страница 48: ...oman and offer his unsolicited opinion that she was unlikely to be successful at trial and should accept the officer s reduction which she did and plead guilty She later appealed the conviction citing that she had been intimidated into the agreement In his ruling Judge K P Evans stated This long time practice of having the charging police officer attempt to negotiate a plea or arrange a settlement...

Страница 49: ... speeding is an absolute liability offence a defence argument that owing to a defective speedometer the accused honestly believed that he or she was not exceeding the speed limit would not be successful R v Keenan 1994 British Columbia Supreme Court The accused appealed a conviction for speeding One of his three grounds for appeal was that there was insufficient evidence of the accuracy of the RAD...

Страница 50: ...n all highways in Nova Scotia of 80 km h The accused conceded that he had the entire file of the Crown There was no withholding of any information there was no expert s report and no need for the preparation of any expert report The accused argument as to the accuracy of the instrument would be persuasive if the alleged offence was one in which there was a marginal difference between the speed lim...

Страница 51: ...area was clearly posted as an 80 km h zone the court allowed the conviction but amended the offence to indicate the non construction zone speed limit of 100 km h Quebec c Robitaille 1991 Quebec Court of Appeal A police officer who was following the accused s vehicle testified that the speedometer of his own car recorded a speed of 140 km h while the speed limit was 90 km h At the end of the Crown ...

Страница 52: ...nce of the police officer with respect to the actual speed of the accused s vehicle as indicated by the RADAR he entered an acquittal on the basis that the Crown had failed to prove that the accused had passed a speed zone sign indicating the posted speed in the area in question The Crown appealed The appeal was allowed There was requirement in the relative statutory provision that speed zone sign...

Страница 53: ...s of the test confirmed the accuracy TRAINING QUALIFICATIONS R v Wolfe B C C C 1979 The officer had some training and experience operating radar set but training fell short which cast doubt on the accuracy of the device and its results R v Brewer May 19 1988 Prov Off Ct Nwkt Ont At trial officer had stated in chief that he was a qualified radar operator and that he had received some basic training...

Страница 54: ...v Axler Unreported August 20 1981 Prov Off App Ct His Honour Provincial Court Judge R B Dnieper Radar alone is good evidence After 42 years of use the courts will accept as prima facie evidence the accuracy of radar devices No longer is radar merely corroborative evidence It is now primary evidence Before the prima facie rule applies it has to be established in evidence that 1 the radar machine wa...

Страница 55: ...evidence rule and violated his right to make full answer and defence under section 7 of the Charter Held The appeal was dismissed The best evidence rule was confined largely to documentary evidence apart from documentary evidence it was not usually applied to exclude secondary evidence otherwise admissible There was no suggestion of an attempt to conceal evidence The accused had been given the opp...

Страница 56: ...o evidence to show that it s reading was inaccurate There was no basis to disturb those findings on appeal R v McDonald Feb 26 1987 B C Co Ct Opinion Evidence Whether radar operator giving expert evidence The trial judge did not err in finding police officer who testified concerning his operation of radar was not an expert so as to require 30 days notice in writing of his proposed evidence under s...

Страница 57: ...GENESIS VPD USER S MANUAL 57 Rev 09 04 User Notes ...

Страница 58: ... warranty 38 faceplate 11 12 factory default settings 7 16 17 18 FAST button 8 11 19 22 FAST icon 13 21 22 Fast Hold mode 8 18 19 21 Fast Toggle mode 8 18 19 21 Faster vehicle mode FSt 8 13 18 19 20 22 FCC 34 37 feedback interference 27 frequently asked questions FAQ 36 37 HOLD icon 13 interference sources and remedies 24 28 K band 32 legal requirements 34 35 LOCK icon 13 22 LOW BAT icon 13 mainte...

Страница 59: ...ecifications 32 33 speed range parameters 32 speed signs 37 speed trailers 37 sports guns 37 spurious speeds 24 28 squelch SLh 16 17 status indicator icons 12 13 storage 31 Strongest Faster method 20 21 Strongest Signal mode 20 target speed simulation 29 TEST button 11 29 test mode tSt 18 19 29 testing 29 30 trigger 7 14 trigger release lock software 7 14 tripod 14 toward t 6 7 14 16 17 19 20 user...

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